Brake-operating apparatus.



E. R. SALAZAR.

BRAKE OPERATING APPARATUS. APPLlcATloN F'ILED sEPLz. 1911.

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E. R. SALAZAR.

BRAKE OPERATING APPARATUS.

APPLlcAHoN FILED SEPT. 2B.

Patented July 30, 1918.

2 SHEETS-SHEET 2.

RHIN Il UNITED STATES PATENT OFFICE. l

EMILIO R. SALAZAR, OF HABANA, CUBA.

BRAKE-'OPERATING APPARATUS.

Application filed September 28, 1917.

To all whom it may conce/m.'

Be it known that I, :EMILIO R. SALAZAR, a citizen of the Republic ofCuba, residing at Habana, Cuba, have invented new and usefulImprovements in Brake-Operating Apparatus, of which the following is aspecification.

This invention `isan improved brake operating apparatus for use onrailway trains, freight cars7 trolley cars and the like, the object ofmy invention being to provide an improved brake actuating apparatuswhich derives its power |from a car or train axle and by means of which.the brakes may be applied 0n any car of a ytrain or simultaneously on-all thefars of a train as may be desired.

Another object of the invention is to provide an improved brakeapparatus of'this kind including a controlling element which may beoperated electrically or manually as may be desired.

A further object. of the invention is to provide an improved brakeactuating apparatus of this character which can be readily installed ona railway car-and which is simple in construction, is strong anddurable, is positive `and reliable in operation,

and which is compact and of ymoderate weight.

The inventionA consists in the constructionfcombination and arrangementof deviceslhereinafter described and claimed.

In the accompanying drawings z- Figure I is a diagrammatic plan "of aportion of a railway car provided with brakes and with a brake actuatingapparatus constructed and arranged in accordance with my invention, thecasing of the brake actuating apparatusbeing shownpartly in section andcertain of thebearings being also shown in section.

Fig. 2 is a vertical longitudinal sectional view lof the same.

Fig. 3 is a vertical transverse sectional View of the same on the plane'indicate-d by the line 3-3 of Fig. 1.

Fig. 4 is a detailed vertical sectional view on the plane indicated bythe line l-ll of Fig. `1.

Fig. 5 is a detailedvertical sectional view of the solenoid.

A caraxle is indicated at 1, provided with the usual wheels 2 and ismounted -in 4bearings 3 which 'are arranged in the endsand near one sideof a casing 4L. The casing Specification of Letters Patent.

Iatent'ed July '30, 1918.

sei-1.11 No. 193,762.

cured on the axle by set-screws 8 and serve to prevent the casing frommoving endwise on the axle. A spur gear 8 is secured on the axle and acam 9 is also secured on the axle gear and is provided on the sideadjacent said spur gear with a concave surface 10 and is provided on theopposite side with a projecting surface 11.

A shaft 12 which has a squared portion is arranged parallel with and ata suitable distance from the axle and is mounted yin bearings 13 whichare secured by ends 1li to the bottom of the casing. A thrust bearingfor one end of the shaftl is formed by a pointed screw 15 which passesthrough a threaded opening'in one end of the casing. A drum 1o ismounted on the shaft for rotation independently thereof and one end of acable I7 is attached to the drum, the other end of the cable heiligattached to a 4brake beam of usual construction. A friction disk at asuitable distance from the spur to the drinn as by means of a commonsleeve to turn with the drum. A friction disk 20 is secured on saidshaft to turn therewith and arranged for longitudinal movement thereontoward and from the disk 15). The disk Z() when frictionally engagedwith the disk 19 andrevo'lved 'by the means 'hereinafter describedcauses the disk 19 to revolve and thereby causes the drum 1G to alsorevolve and wind the cable 17 and thereby apply the brake. A coiledspring 21 is arranged 4on the shaft and 'bears between the hub of thedisk 20 and a collar 22 with which the shaft is provided. A spur gear 23is mounted on the squared shaft '12 fo`r.rotation therewith and forslight :longitudinal A rock shaft QG is arranged parallel with l 'theaxle and the shaft l). and is mounted in bearings 27. The rock shaft issquared for the 'greater portion of its length and is provided at oneend with a lever .28 which is -arranged at right-angles thereto and towhich the core 29 of a solenoid 30 is connected by means of a link 3l. Aarriage 32 is mounted on the rock shaft 'to turn "therewith and forlongitudinal movement thereon and is provided with arms 33, 34C

' which are appropriately spaced apart and .to cause the carriagethrough the instrugeared'to theaxle isy caused to revolve and` mentalityof its arm 35 andthe shipper arm Y37 to -inove the vgear 23 Vto one sideof and out of engagement with the gear 8. The ari'ns 33, 3e of thecarriage are tappet arms and are respectively adaptedto engage the camsurfaces 11 and 10 of the cam 9 'which is on the axle. The windings ofthe solenoid are connected in circuit with a generator or batteryin'thelocomotive or in any car of a train, as will be understood. Aspring 4t2V is provided foreach solenoid to' normally move .the corepiece outwardly and thereby cause the'rock shaft 26 to normally hold thetappet arm 33 of the carriage 32 out of engagement with the face .11 ofthe cam` 9. "he operation of my improved brake apparatus isv as'follows: `When the solenoid is energized "and movesl its core pieceinwardly the link 31 Vand llever 2S partly turn the rock shaft 26` inthe required direction to engage the tappet arm 33 of the carriage 32with the cam'face l1 ofthe cam 9 which turns with the car axle 1l Hencesaid cam face 11 causes the arm 33 to move the carriage, against thetension of the spring 38 and in the required direction to cause thecarriage to movek the gear wheel 23 into engagementwith the gear 8.Thereu on the shaftY 12 bein Vthus momentaril P ,a g Y Y ,the frictiondisks 19 20 cause the drum 16 to also revolve to a4 suiiicientextent towind up the cabley 17 and thereby apply the brakes. l

' To release the brakes the electric circuit` is `broken and thesolenoid denergized, thus V enabling the spring LI2 to move the solenoidcorev 29 outwardly and` thereby causeV the V,rockv yshaft to be slightlyturned in the refversewdirection and to disengage its arm 33,'-fr'ointhe'cam face 11 and to arrange its arm 311 in position forengagement with the eamface 10. If there is butflittle Vpower "beingtransmitted vthrough the gears the spring 38 will then move thecarriagel 32 back; to'normal position, thus disengaging the gear23Vfroin the gear 8,.' Otherwise the Y 10""to thus return the carriageto initial posiarmfwilll be actuated by the cam face l[tion and insurethe release ofv the brakes.

A Vhand operated rod 43 may be connected f to the Y, solenoid core orplunger to enable said when thus used on a trolley car the motor-V manwill not have to exert himself as with the hand brake as but very littleeffort is required to manually move the plunger of the solenoid which isthe controlling element `of my brake actuating apparatus.

While I .have herein shown and described a preferred form of myinvention, I would have lit understood that changes v may be made inthe' form, proportion and construction 'ofthe several-parts, lwithoutdeparting Yfrom the spirit of my inventionlraiid` within the scope ofthe appendedxelaimsi Having lthus described my invention, I

claimz" Y 1 1. In combination with a train axle, a gear thereon, a 'camalso onthe axle,`a shaft,

brake actuating means on theV shaft, a gear mounted for rotation withsaid shaft and also for movement thereon so that said gear may beshifted into or out of egagemeiit with the axle geaigand shifting meansfor said shiftable gear, said shifting means being actuated by said cam.

2. In combination withA a train axle, a

gearrthereon, a4 cam also on 'the axle, .a y

shaft, brake actuating means on the shaft,

agear mounted for `rotationvwith said-shaft and also for movementthereon so that said gear may be shifted into or out ofengagement withthe axle gear, shifting means for said shiftable gear, said-shiftinglnicans being actuated by said cam, and controlling` means for said gearshifting means.

siaft, gears on said jaxlejand shaft, one'of gears beinglshiftable intoand routfof'* engagement withl the'other, shifting means forsaidshiftable gear and means foroperating said shifting means, saidoperating i means being Voperated .by the power ofthe axle.y .Y

4. In combination vwithga traiii"axle,"` a

shaft7 gears o nr saidn axle'and shaft, one of ksaid gears beingshiftable into` and out Vof engagement with the other, shifting means 3.In combination with Ya train axle, a f

for said shiftable gear, means onY the axle for operating saidshifting'means, and con-V f trolling means for said shifting means.V

5. In brake apparatus,V of the class described, brake operating meansincluding a axle, Canyon a rock shaft, controlling means for the rockshaft, a carriage, connections between the carriage and the gear toenable the carriage to shift the gear and a tappet arm with which thecarriage is provided and arranged for engagement with the cam to causethe cam to longitudinally shift the carriage when the tappet arm isengaged with the cam.

6. In brake apparatus of the class described, brake operating meansincluding a shiftable gear, an axle having a cam, a rock shaft,controlling means to partly turn the rock shaft, a carriage to shift thegear and mounted for longitudinal movement on the rock shaft and forturning` movement therewith, said carriage having a tappctv armengageable with the cam.

7. In brake apparatus of the class described, brake operating meansincluding a shiftable gear, an axle having a cam, a rock shaft,controlling means to partly turn the rock Shaft, a carriage to shift thegear and mounted for longitudinal movement on the rock shaft and forturning movement therewith, said carriage having tappet arms alternatelycngageable with the cam to enable the cam to Inove the carriage ineither direetion.

In testimony whereof I aflix my signature.

EMILIO R. SALAZAR.

Copies of this patent may be obtained for ve cents each, by addressingthe Commissioner of Patents, Washington, D. C.

